The most expensive thing I buy right now is companionship. I strongly suspect that if I cannot overcome my breathing problem, I will be spending a lot more money on people to get things up and down from the shelves in my closet or other storage area, to carry my purchases to my vehicle, to mow my lawn, etc.

Those could be exchanged for childcare, tech support, or perhaps homemade bread even though I am not very good at submission and toilet scrubbing.